2017MNRAS.471.3028R

Query : 2017MNRAS.471.3028R

2017MNRAS.471.3028R - Mon. Not. R. Astron. Soc., 471, 3028-3035 (2017/November-1)

Investigating the in-flight performance of the UVIT payload on AstroSat.

RAHNA P.T., MURTHY J., SAFONOVA M., SUTARIA F., GUDENNAVAR S.B. and BUBBLY S.G.

Abstract (from CDS):

We have studied the performance of the Ultraviolet Imaging Telescope payload on AstroSat and derived a calibration of the far-ultraviolet (FUV) and near-ultraviolet (NUV) instruments on board. We find that the sensitivity of both the FUV and NUV channels is as expected from ground calibrations, with the FUV effective area about 35 per cent and the NUV effective area about the same as that of GALEX . The point spread function of the instrument is on the order of 1.2-1.6''. We have found that pixel-to-pixel variations in the sensitivity are less than 10 per cent with spacecraft motion compensating for most of the flat-field variations. We derived a distortion correction but recommend that it be applied post-processing as part of an astrometric solution.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): instrumentation: detectors - techniques: photometric - ultraviolet: general - ultraviolet: general

VizieR on-line data: <Available at CDS (J/MNRAS/471/3028): table3.dat>

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 6

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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 BD+84 12 * 00 42 43.4115091200 +85 14 14.133990876 10.061 10.05 9.55     F5 29 0
2 NGC 188 OpC 00 47 11.5 +85 14 38           ~ 922 0
3 NGC 188 2091 SB* 00 47 52.2151315344 +85 19 08.308468056 15.363 16.084 16.260 16.285 16.394 ~ 19 0
4 HZ 4 WD* 03 55 21.9881513952 +09 47 18.135008592 13.917 14.592 14.506 14.58 14.642 DA3.4 203 0
5 EGGR 29 WD* 04 09 28.9040081904 +17 07 54.395653512 14.66 15.378 15.323 15.408 15.515 DA3.2 120 0
6 UGC 4305 IG 08 19 04.9864630512 +70 43 13.086910452 12.06 11.72 11.39 11.11   ~ 770 2

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